Question PSU SATA not working for hdd

[Pablobhn]

When I connect my HDD to my PSU SATA cable, it doesn't turn on. The PSU is a cougar gx modular one, I've tried 3 different SATA cables (all of them are 8 pin - 5 for real - to 3 or 4 sata connectors in chain, none of the connectors work).

I've tested the HDD with an external PSU (transformer 220v to 12v, then a molex to SATA) and it works just fine.

I'm missing something?

 

[--SID--]

The SATA cables you used are the original cables that came with the PSU?

 

[Pablobhn]

The SATA cables you used are the original cables that came with the PSU?

Yes, they are. The PSU has 4 8-pin connectors for SATA, cables are 8 pin, 3 of them empty and only 5 of them are actually wired.